Home / 52,078.58-78,099.03-18,789.69

Finding the Fourth Proportional to 52,078.58, 78,099.03 and 18,789.69

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Solution

The fourth proportional to 52,078.58, 78,099.03 and 18,789.69 is: 28,177.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,078.58 : 78,099.03 = 18,789.69 : x
  2. Step 2: Convert to fraction form
    52,078.58/78,099.03 = 18,789.69/x
  3. Step 3: Cross multiply
    52,078.58x = 78,099.03 × 18,789.69
  4. Step 4: Simplify right side
    52,078.58x = 1,467,456,563.00
  5. Step 5: Solve for x
    x = 1,467,456,563.00/52,078.58
  6. Step 6: Final answer
    x = 28,177.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.